摘要:
A protective garment for firefighters having a breathable moisture barrier layer film which is does not suffer destruction on exposure to the Thermal Protective Performance Test of the National Fire Protection Association 1971 Standard.
摘要:
Chitosan films and laminates made from the films are provided. The films and laminates can be used to make a variety of finished articles that can be used to provide protection from hazardous chemical and biological agents.
摘要:
This invention relates to a barrier film useful in protective apparel and structures, and a process for making said film; the film comprising a polyurethane network having a polyalkylamine incorporated therein, wherein the film, after contact with boiling water for 5 minutes, has less than a 50 percent loss in weight of the polyalkylamine.
摘要:
This invention relates to a laminate useful in protective apparel and structures, and processes for making said laminate, the laminate comprising i) a polymer barrier layer comprising a polyurethane network having a polyalkylamine incorporated therein; and ii) a support substrate; wherein the laminate, after contact with boiling water for 5 minutes, has less than a 20 percent loss in weight of the polyalkylamine.
摘要:
Apparatus for cutting poultry carcasses into pieces which can be from two pieces up to twelve pieces, having a power driven feeding mechanism which moves a carcass along support while it is being cut into pieces automatically by various blades. The support includes a guide bar having a projecting end suitable for being inserted through the central cavity of a poultry carcass. The feeding mechanism includes twin pneumatic cylinders arranged to cause reciprocating motion of a claw along the support, the claw being arranged to engage the carcass when this is positioned on the bar, and to cause movement of the carcass through the various cutting blades which are mounted adjacent to the support. The bar projects forwards from a supporting slideway having downwardly sloping side surfaces, and the cutting blades include a fixed blade projecting downwardly from the bar in front of the slideway for slitting the wish-bone of the carcass, and a band saw which subsequently removes the drumsticks and the breast point of the carcass and allows the breast of the carcass to be separated, the separate portions then being supported by the side surfaces of the slideway. Subsequently, two blades remove the wings of the carcass, a blade slits the back bone, and transverse blades move into a slot in the slideway to cut the carcass in half longitudinally. The cut parts fall from the apparatus onto a slatted conveyor belt which delivers the cut parts to bags or other containers.
摘要:
This invention relates to a polymer composition useful as a chemical barrier, and films, laminates, and articles comprising the polymer composition and methods for making the polymer composition; the polymer composition comprising: a polyurethane network having a polyalkylamine incorporated therein, wherein the polymer composition, after contact with boiling water for 5 minutes, has less than a 50 percent loss in weight of the polyalkylamine.
摘要:
A protective garment for firefighters having a breathable moisture barrier layer film which is does not suffer destruction on exposure to the Thermal Protective Performance Test of the National Fire Protection Association 1971 Standard.
摘要:
Protective laminates are provided that include (a) a layer that is breathable and highly impermeable to chemicals to a degree that is subject to reduction upon flexing of the highly impermeable layer alone; and (b) a breathable non-textile layer attached to the highly impermeable layer, the non-textile layer mitigating the reduction in the impermeability of the highly impermeable layer if the laminate is flexed. The laminates may, for example, be attached to textiles and used in protective fabrics.
摘要:
The invention relates to conductive polymer composites comprising a first layer comprising at least one electrically doped conductive polymer and a second layer comprising at least one material selected from a colloid-forming polymeric acid, a salt of a colloid-forming polymeric acid, a non-polymeric fluorinated organic acid, and a salt of a non-polymeric fluorinated organic acid.
摘要:
Compositions, and methods of making, are provided comprising non-aqueous dispersions of at least one doped conductive polymer and at least one colloid-forming polymeric acid, wherein the conductive polymer is selected from a polythiophene, a polypyrrole, a polyaniline, and combinations thereof. Electronic devices and other applications having at least one layer made from at least one such compositions are further provided.